Interface range command

If you have multiple interfaces that need to be configured with the same settings, you can use the interface range command to specify a range of interfaces to which the subsequent commands will be applied.

For example, let’s say that interfaces Fa0/4, Fa0/5, Fa0/6, Fa0/7, and Fa0/8 need to have the same description. We don’t need to enter the subinterface mode of each interface separately to configure the description – we can use the interface range Fa0/4 – 8 command and then execute the description command: